bytedance: g220a: Add retry for me-time-sync

ipmb may not be ready for communication when me-time-sync start.
Add some retry so that the time could be synced.

Tested: Test 10 times, me-time-sync can work well

Signed-off-by: Lotus Xu <xuxiaohan@bytedance.com>
Change-Id: I93343d2ac17fc13b1d094bf05f424d9cb54cfa3f
diff --git a/meta-bytedance/meta-g220a/recipes-phosphor/datetime/me-time-sync/me-time-sync.service b/meta-bytedance/meta-g220a/recipes-phosphor/datetime/me-time-sync/me-time-sync.service
index e0ee717..703bc35 100644
--- a/meta-bytedance/meta-g220a/recipes-phosphor/datetime/me-time-sync/me-time-sync.service
+++ b/meta-bytedance/meta-g220a/recipes-phosphor/datetime/me-time-sync/me-time-sync.service
@@ -3,9 +3,16 @@
 Wants=ipmb.service
 After=ipmb.service
 
+#ipmb may not ready for communication when
+#me-time-sync start, add some retry
 [Service]
-Type=oneshot
+Type=simple
+Restart=always
+StartLimitInterval=90
+StartLimitBurst=5
 ExecStart=/usr/bin/me-time-sync.sh
+RemainAfterExit=yes
+
 
 [Install]
 WantedBy=multi-user.target